特徵描述
作者
LI, HUI-LIN and HSIEH, CHANG-FU
型態特徵
Deciduous or evergreen shrubs or trees, often with stellate pubescence. Leaves alternate, rarely opposite, simple or palmately lobed, the teeth often glandular; stipules often 1–2, usually persistent, sometimes large, rarely wanting. Flowers bisexual, polygamous or monoecious, regular or irregular, small, perigynous or epigynous. Calyx-tube adnate to the ovary, the lobes 4–5, rarely 6–7, imbricate, rarely valvate. Petals 4–5, or wanting, usually valvate, rarely imbricate or circinate. Stamens 4–5, or sometimes more, perigynous, 1-seriate, the filaments free; anthers 2-celled, the connectives often produced. Ovary inferior, half-inferior, or rarely superior, 2-celled; styles subulate, free, often recurved, usually persistent; ovules 1 or several in each cell, anatropous, pendulous. Fruit a woody, 2-valved, 2-celled capsule; exocarp coriaceous; endocarp horny. Seeds often winged, albuminous, the testa black, horny; embryo erect.
屬
About 23 genera with 150 species, chiefly in subtropical and warm temperate regions of both hemispheres, six genera in Taiwan.
參考文獻
Sycopsis 水絲梨屬
作者
LI, HUI-LIN and HSIEH, CHANG-FU
型態特徵
Evergreen trees or shrubs. Leaves alternate, entire or sparsely denticulate, penninerved, short-petiolate; stipules narrow, caducous. Flowers monoecious, small, apetalous, in terminal or axillary heads or short racemes surrounded by pubescent bracts. Male flowers: sepals minute; stamens 8–10, the filaments slender; ovary rudimentary. Female flowers: calyx urceolate, 5-lobed, stellate-pubescent, enclosing the ovary; ovary superior; styles distinct, slender, with decurrent linear stigmas. Capsule with the irregularly splitting calyx at the base, 2-valved, with 2 brown lustrous seeds.
